The[[warbird]] design referred to as '''''D'deridex''-class''','''B-type warbird''', or '''Warbird class''' was one of the largest and most powerful mainstays of the [[Romulan Star Empire]]. It served as the backbone of the [[Romulan military|Romulan fleet]] during the latter half of the [[24thcentury]].

The'''''D'deridex''-class'''[[Warbird]] (also known as the '''Type-B Warbird''') was the backbone of the [[Romulan]] fleet during the mid- to late-[[24th century]].

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==History==

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[[File:D'deridex class faces Galaxy class, The Neutral Zone.jpg|thumb|left|Facing off with a ''Galaxy''-class starship]]

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The uncloaking of a warbird of this type in [[2364]], during an encounter with the {{USS|Enterprise|NCC-1701-D|-D}} on the edge of the [[Romulan Neutral Zone|Neutral Zone]], signaled the end to fifty-three years of [[Romulan]] isolation. ({{TNG|The Neutral Zone}}) Over the next ten years, these warbirds, under the command of both the Romulan military and the [[Tal Shiar]], participated in numerous encounters with [[Starfleet]] and the [[Dominion]].

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==History==

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By [[2374]], they were prominently featured in the [[Dominion War]], where they were instrumental in forcing the Dominion fleets back, time and again. The design saw action during the [[First Battle of Chin'toka|First]] and [[Second Battle of Chin'toka|Second]] Battles of [[Chin'toka]], as well as the final showdown of the conflict, the [[Battle of Cardassia]]. ({{DS9|Tears of the Prophets|The Changing Face of Evil}})

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The emergence of the massive ''D'deridex''-class Warbird in [[2364]], during an encounter with the [[USS Enterprise (NCC-1701-D)|USS ''Enterprise''-D]] on the edge of the [[Romulan Neutral Zone|Neutral Zone]], signaled the end of a fifty-three year Romulan isolation. ([[TNG]]: "[[The Neutral Zone]]", et al.)

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Over the nexttenyears, theseWarbirdswouldparticipate in numerousencounterswith[[Starfleet]].

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At least four warbirds were used in the [[Battleofthe Omarion Nebula]], joinedwithatleast twelve Cardassian {{class|Keldon}} cruisers in acombinedfleetof twenty ships. The entire fleet was ambushed and destroyed by a fleet of 150 Dominion ships. ({{DS9|The Die is Cast}}) At least seven warbirds were present in the Federation Alliance fleet at the Battle of Cardassia. One is known to have been destroyed and at least five survived. ({{DS9|What You Leave Behind}})

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By[[2374]],theywere also prominently featured in the [[Dominion War]], where they were instrumental in forcing the [[Dominion]] fleets back time and again. ([[DS9]]: "[[In the Pale Moonlight]]", "[[The Reckoning]]", et al.)

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==Technicaldata==

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:''The termWarbirddatesback as far as the [[2344]] encounterwiththe [[USSEnterprise(NCC-1701-C)|USS ''Enterprise''-C]]. Itis,however,unclearifthisspecificallyrefersto the ''D'deridex''-classdesignorthat of yetanotherunknownWarbird class.''

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The ''D'deridex''-classwarbirdwasclassified as a [[battle cruiser]] byStarfleet.Using a [[forcedquantumsingularity]] as a power source (see [https://en.wikipedia.org/wiki/Black_hole_starshipBlackholestarship])andthelatestinRomulancloaking technology, the ''D'deridex'' wasnotonly one of themostadvancedvesselsin the [[Romulan Star Empire]], but also in the [[Alpha Quadrant]]. These warbirds were roughly twice as long as a [[Federation]] {{class|Galaxy}} [[starship]] with a lower overall [[maximum warp|maximum speed]]. ({{TNG|The Neutral Zone|Tin Man}})

Theoutboard plan of the warbird's design incorporated a unique, horizontally split "shell" [[hull]] design, with a prominent forward section. The bulk of the ship's overall size was incorporated in the open-shell, which resembled two separate "wings" that met at either side at the warp [[nacelle]]s, at the "tail" and off the "neck", which was connected to the "head" or primary forward hull section. The "head" featured the [[bridge]], [[main engineering]], and a majority of the primary weapon systems of the vessel. ({{TNG|The Neutral Zone}}, etc.)

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The ''D'deridex''-class Warbird was one of the most advanced vessels in the [[Romulan Star Empire]]. Warbirds are roughly twice as long as a [[Federation]] [[Galaxy class|''Galaxy''-class]] [[starship]], with an advantage in fire power, but a lower maximum speed and less combat maneuverability.

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===PhysicalArrangement===

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{{bginfo|[[AndrewProbert]], who designed the ''D'deridex''-class warbird, intended for it to have a length of 4,440 feet (1,353 meters). ''[http://johneaves.wordpress.com/2009/08/12/art-of-the-romulan-warbird-valdore-day-one/#comment-6499]'' He writes, "''The wings were to have had a LOT more substance to them (as seen in my drawing) but was reduced [on] the model. They are separated to allow the engines to 'see' each other and generate a warp field. As previously noted on the board, I did not design the subsequent ships that ignore my attempt at requirements-for-warp-drive continuity.''" ''[http://www.trekbbs.com/showpost.php?p{{=}}3312206&postcount{{=}}44]''}}

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The outboard plan of the Warbirds' design incorporates a unique horizontally split-"shell" [[hull]] design, with a prominent forward section. The bulk of the ships overall size is incorporated in the open-shell, which resemble two separate "wings" that meet at either side at the warp [[nacelle]]s, at the "tail" and off the "neck", which is connected to the "head" or primary forward hull section. The "head" features the [[bridge]], [[main engineering]] and a majority of the primary weapon systems of the vessel.

The primary [[directedenergyweapon]]s array of a warbird was located in its "head", and consisted of a [[disruptor]]array, capable of firing both beams and pulses, which also appears to have been shared with a [[torpedo]] launcher. ({{DS9|The Die is Cast}}; {{TNG|The Defector|Face of the Enemy|Timescape}}; {{VOY|Message in a Bottle}}) Some warbirds were also known to have been equipped with [[phaser]]s. ({{TNG|Contagion}})

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===Tactical Systems===

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The primary emitter of a Warbird in located at its forward [[disruptor]] array, which also appears to be shared with a [[plasma torpedo]] launcher. ([[DS9]]: "[[The Die is Cast]]"; [[VOY]]: "[[Message in a Bottle]]", et al.) Two additional disruptor arrays are located, one each, along the top of the upper "neck" support and one along the bottom of the lower "neck" support. ([[TNG]]: "[[Contagion]]", "[[Unification, Part II]]")

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:''Althoughnotmentionedonscreen, theoriginal design of the Warbird was to have a single torpedo launcher behind the "head" and "neck" of the ship, at the top foremost position of the upper "shell".The positions of the disruptor arrays were originally intended to be placed in pairs along each side of the "head", the highest point at top-center of the "back", at the lowest point at top-aft of the "back",in the "tail", and at the highest point at the bottom-aft of the "belly" --totalingeightinall.''

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Threeadditionalweaponarrayswere located, oneeach, along the top of the upper "neck" support, along the bottom of the lower "neck" support, and at the tip of the "nose".({{TNG|Contagion|UnificationII}};{{DS9|WhatYouLeave Behind}})

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:''Interestingly, the primary array has fired both constant and intermittent disruptor beams (as well as the occasional [[torpedo]]). It is unknown if the disruptor types used are the [[type-3 disruptor]]s mentioned in ''[[Star Trek: Generations]]''. On occasion, various Starfleet officers have been mistakenly misidentified Romulan disruptors as [[phaser]]s. [[Photon torpedo]]es have also been mentioned as being among a Warbirds' armament. It is, however, unclear if this was also a mis-quote or if they were always intended to be plasma torpedoes, a weapon originally used in [[TOS]]: "[[Balance of Terror]]" and later resurrected (for the Romulans) in [[DS9]]: "[[Image in the Sand]]".''

{{bginfo|Althoughnot mentioned on screen, the original Andrew Probert design of the warbird was to have a single torpedo launcher positioned at the upper "nape" of the ship, at the top foremost position of the upper "shell". In addition, the warbird was to have a total of ten disruptor emitters, positioned in various locations on the model. These positions included: one pair on the "head" (one on either "cheek"), one pair on the vertical structure at the aft end of the ship (one on either side), two pairs on the aft edges of the port and starboard dorsal and ventral wings (one emitter at each location, for a total of four), and one pair at the dorsal apex of the ship. However, two other emitters are seen on at least one warbird, namely in the "nose" (pictured) and top part of the upper "back" (shown in {{TNG|Contagion}}). ''[http://flare.solareclipse.net/ultimatebb.php/topic/6/554/3.html#000043]}}

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Like earlier Romulan ships, ''D'deridex''-class Warbirds were equipped with [[cloaking device]]s, which protect them from detection in most evasive situations. However, cloaked Warbirds radiate a slight subspace variance at warp speeds, therefore ships traveling at speeds above [[warp factor|warp 6]] run a much greater risk of being detected through their cloak. ([[DS9]]: "[[The Search, Part I]]", "[[The Die is Cast]]") While traveling under cloak, all electromagnetic emissions, including communications, aboard a Warbird are carefully monitored. ([[TNG]]: "[[Face of the Enemy]]")

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===PropulsionSystems===

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=== Cloaking device ===

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[[Image:Dderidex-enginecore.jpg|thumb|[[warp core|Enginecore]]]]

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Like earlier Romulan ships, ''D'deridex''-class warbirds were equipped with [[cloaking device]]s, which protected them from detection in most evasive situations. Like all cloaking devices, the ''D'deridex''-classcould utilize them when in defensive or combat situations. However, cloaked warbirds radiated a slight subspace variance at warp speeds; therefore, ships traveling at speeds above [[warp factor|warp6]] ran a much greater risk of being detected through their cloak. ({{DS9|The Search, Part I|The Die is Cast}}) There were other unconventional means to penetrate the warbird's cloak. While traveling under cloak, all electromagnetic emissions, including communications, aboard a warbird were carefully monitored. ({{TNG|Face of the Enemy}})

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Warbirds utilize a [[forced quantum singularity]] as a power source. If that system is not functioning perfectly or is damaged, even slightly it might show through the cloak as a magnetic disturbance of some kind.

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Inorderfora Warbird to remain undetected while under cloak, the radiative emissions from the warp engines must be precisely balanced. A slight misalignment in any of the Warbirds' [[nullifier core]]s will create a small magnetic disturbance in [[space]] whenever the ship is in motion. This may make the ship detectable while cloaked. The effect of this disturbance, when it occurs, appears intermittently as a polarized magnetic distortion. ([[TNG]]: "[[Face of the Enemy]]")

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===Propulsionsystems===

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[[File:Dderidex-engine core.jpg|thumb|Engine core]]

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The fact that a typical ''D'deridex''-class warbird used a [[forced quantum singularity]] as its power source gave the ship some vulnerabilities. If that system was not functioning perfectly or was damaged even slightly, it might have shown through the cloak as a magnetic disturbance of some kind. The destruction of the engine core of a ''D'deridex''-class warbird usually led to the complete destruction of the entire ship.

Inorderforawarbirdto remain undetected while under cloak, the radiative emissions from the warpengineshadto be precisely balanced. Aslightmisalignmentinany of the warbird's[[nullifiercore]]s would create a smallmagneticdisturbancein[[space]]whenevertheshipwasin motion. This could make the ship detectable while cloaked. The effect of this disturbance, whenitoccurred,appearedintermittentlyasapolarizedmagneticdistortion. ({{TNG|Faceofthe Enemy}})

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===AdditionalSystems===

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Theuse of the confined singularity limited the warbird's overall maximum speed. For a warbird to match the maximum speed of a ''Galaxy''-class starship, it needed to exceed its engine output by thirty percent. Doing this would typically cause the warbird's [[warp drive]] to sustain irreparable damage. ({{TNG|Tin Man}})

At least one [[tractor beam]] is located in the forward section of the Warbird, specifically in its' lower "neck". ([[TNG]]: "[[The Mind's Eye]]")

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:''Althoughseveralfeaturesof the Warbirdwereneveraddressedonscreen, [[AndrewProbert]],thedesigner of theWarbird, hasnotedthelocationsofseveralofthesecomponents, including the locationsoftheaforementionedweaponsystems.

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Theconfinedsingularitycould occasionally cause [[time travel|time shifts]] into the future.ThisoccurredtoStarfleetChief Engineer [[MilesO'Brien]] for a brief period. As aresult of thiseffect, hewasabletopreventanattackon [[Deep Space 9]] by a Romulan warbird.Also, if the singularitysignaturewascarefullyscanned,it could be monitored through the cloak. ({{DS9|Visionary}})

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:''The [[navigationaldeflector]] issupposedto be "V"-shapedfaceplatelocatedonthe"face"oftheship, the center of whichwasinsteadfeaturedastheprimarydisruptorarray/torpedolaunchbytheVFXeditors.

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{{bginfo|Regarding the [[impulseengine]],AndrewProbertwrites, "''[Itwas]omittedbyatightschedule[...]but it would have been recessed into a vertical slot starting just below that landing bay and ending symmetrically below. The reason there are few (if any) side windows at the back area of theshipisbecausethat'swherethatengine&powerplantwouldhavebeen.''" ''[http://www.trekbbs.com/showpost.php?p{{=}}3312206&postcount{{=}}44]}}

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:''The[[impulseengine]]sare non-existent of the Warbird model. Probert admitted this mistake as an oversight -- one made, in part, due to a limited time schedule for design and construction.

The warbird was equipped with at least one [[tractor beam]], located in the forward section of the warbird, specifically in the lower "neck". ({{TNG|The Mind's Eye}})

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==InteriorDesign==

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{{bginfo|Although several features of the warbird were never addressed on screen, Andrew Probert has noted the locations of several unmentioned components, including the locations of the aforementioned weapon systems.|The [[navigational deflector]] is supposed to be a "V"-shaped faceplate located on the "face" of the ship. However, the center of this faceplate was instead featured as the primary disruptor array/torpedo launcher by the visual effects editors. ''[http://www.trekbbs.com/showpost.php?p{{=}}3312206&postcount{{=}}44]''|Since Probert has identified at least one of their placements on the physical model, it is now possible to count at least twenty-six [[escape pod]] hatches on the warbird, thirteen on either side of the ship's dorsal spine.''[http://www.trekbbs.com/showpost.php?p{{=}}3312206&postcount{{=}}44]}}

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[[Image:Warbird-corridor.jpg|thumb|A typical corridor.]]

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The primary color scheme aboard Warbirds is distinctively beige and green-gray or teal.

The design of the [[main bridge]] of a Warbird shares numerous similarities to both

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its [[Klingon]] and Federation starship counterparts.

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Locatedin the front of the bridge, against the forward bulkhead, is the ship's main [[viewscreen]].

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===Main bridge ===

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[[File:Khazara-viewscreen.jpg|thumb|Viewscreen of the ''Khazara'']]

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The design of the [[main bridge]] of a warbird shared numerous similarities to both its [[Klingon]] and Federation starship counterparts.

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Directlybehind the viewscreen, and to the left, is the location of the [[pilot]]'s console, which contains [[helm]] (and possibly [[navigator]]) functions. In some ships, the pilot stands at his console; in others the pilot is allowed a chair.

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Locatedin the front of the bridge, against the forward bulkhead, was the ship's main [[viewscreen]]. Directly behind this, and to the left, was the location of the [[pilot]]'s console, which contained [[helm]] (and possibly [[navigator]]) functions. In some ships, the pilot stood at his console; in others, the pilot was allowed a chair.

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To the right of the pilots' position,isthe station sometimes held by the [[executive officer]]. This console has access to the ships' [[tactical|weapons systems]].

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To the right of the pilot's position wasa station sometimes held by the [[executive officer]]. This console had access to the ship's [[tactical|weapons systems]].

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The [[captain's chair|command chair]] is located near the rear of the bridge on a raised platform. Around the parameter of the command chair are various stations.

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The [[command chair]] was located near the rear of the bridge, on a raised platform. Around the perimeter of the command chair were various stations. ({{TNG|Contagion|Face of the Enemy}}; {{DS9|The Die is Cast}})

Major variations in bridge design include a side-by-side seating arrangement for the [[Commander]] and [[Subcommander]]. ([[TNG]]: "[[The Neutral Zone]]")

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Major variations in bridge design included a side-by-side seating arrangement for the [[commander]] and [[subcommander]]. ({{TNG|The Neutral Zone}})

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:''At least four different types of ''D'deridex''-class bridges have appeared in ''[[Star Trek]]'', each significantly different than the next. Although rather consistent in terms of layout, these variations -- including positions and design of auxiliary consoles/stations, style of command chair and design of view screen -- appear to vary as much between Warbirds as they vary between different [[Klingon Bird-of-Prey|Klingon Birds-of-Prey]]. The bridge that appeared in "The Die is Cast" was, by far, the most elaborate, followed closely by the bridge in "Face of the Enemy".

:''According to the script for "Face of the Enemy", the original bridge layout placed the command chair to the far back of the bridge so that 'no [[officer]] went unsupervised'. This, however, was not how the final layout for the bridge was designed, as there were consoles positioned just outside the commander's peripheral vision. The bridge that later appeared in "The Die is Cast" placed several auxiliary consols well behind the commanders field of vision.''

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{{bginfo|At least four different types of ''D'deridex''-class bridges have appeared in ''[[Star Trek]]'', each significantly different than the next. Although rather consistent in terms of layout, these variations &ndash; including positions and design of auxiliary consoles/stations, style of command chair and design of viewscreen &ndash; appear to vary as much between warbirds as they vary between different [[Klingon Bird-of-Prey|Klingon Birds-of-Prey]]. The bridge that appears in "The Die is Cast" is, by far, the most elaborate, followed next by the bridge in "Face of the Enemy".|According to the script for "Face of the Enemy", the original bridge layout placed the command chair to the far back of the bridge so that 'no [[officer]] went unsupervised'. This, however, was not how the final layout for the bridge was designed, as there were consoles positioned just outside the commander's peripheral vision, or even directly behind the commander's chair. The bridge that later appeared in "The Die is Cast" placed several auxiliary consoles well behind the commander's field of vision.}}

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===Ready Room===

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===Ready room ===

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[[Image:Dderidex-ready room.jpg|thumb|[[Ready room]]]]

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[[File:Dderidex-ready room.jpg|thumb|Ready room]]

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Adjacent to the bridge is the commander's [[ready room]] or command center. Although appearing to vary by ship, one style includes (but is not limited to) a large desk and couch, with removable table and a window viewinginto [[space]]. ([[DS9]]: "[[Improbable Cause]]", "[[The Die is Cast]]")

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Adjacent to the bridge was the commander's [[ready room]] or command center. Although appearing to vary by ship, one style included (but was not limited to) a large desk and couch, with removable table and a window thatprovided a view of outside the ship, such as showing a perspective of [[space]] when the vessel was in its normal environment. ({{DS9|Improbable Cause|The Die is Cast}})

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====CommandCenter====

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Insome cases, ready rooms functioned as command centers, and included monitors and display consoles. This allowed the commander to monitor the control of ship or fleet activities without actually being on the bridge. ({{TNG|Redemption II}})

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The command center is an alternative to a ready room, which includes monitors and display consoles. This allows the commander to monitor the control of ship or fleet activities without actually being on the bridge. ([[TNG]]: "[[Redemption, Part II]]")

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{{clear}}

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[[Image:Khazara-wardroom.jpg|thumb|Wardroom]]

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=== Wardroom ===

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===Wardroom===

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[[File:Khazara-wardroom.jpg|thumb|Wardroom]]

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The Wardroomis the conference or officers room connected to the main bridge by a set of doors. Its function is similar to that of an [[observation lounge]], but also serves as the dining area for the ship's [[senior officer]]s. ([[TNG]]: "[[Face of the Enemy]]")

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The wardroomwas the conference or officers' room connected to the main bridge by a set of doors. Its function was similar to that of an [[observation lounge]], but also served as the dining area for the ship's [[senior officer]]s. ({{TNG|Face of the Enemy}})

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:''This would seem to indicate that a meal preparation room is located near the ward room, in order to best facilitate the serving of the officers prepared meals.''

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{{bginfo|This would seem to indicate that a meal preparation room was located near the ward room, in order to best facilitate the serving of the officers' prepared meals.}}

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{{clear}}

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===MainEngineering===

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=== Engine room ===

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[[Image:Dderidex-engineering.jpg|thumb|[[Mainengineering]]]]

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[[File:Dderidex class engineering.jpg|thumb|Engineroom]]

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The [[mainengineering]] section is located at the ventral base of the forward "head" of the Warbird. Its layout is similar to that of a ''Galaxy''-class starship, with [[master systems display|primary situation station]] in the center of the room, and associated consoles along the walls surrounding the room.

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The [[engineroom]] section was located at the ventral base of the forward "head" of the warbird. Its layout was similar to that of a ''Galaxy''-class starship, with [[master systems display|primary situation station]] in the center of the room and associated consoles along the walls surrounding the room.

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One outstanding difference between the main engineering of a Warbird and other [[Romulan starships]], from those of the Federation and Klingons, is the absence of a large matter-antimatter [[warp core|reactor core]]. In place of this bulky component, the Romulans have a wall compartment, which containstheirRomulan engine core. ([[TNG]]: "[[Timescape]]")

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One outstanding difference between the main engineering of a warbird and other [[Romulan starships]], likewise distinguishing it from those of the Federation and [[Klingon Empire]], was the absence of a large matter-antimatter [[warp core|reactor core]]. In place of this bulky component, the Romulans had a wall compartment, which containedthequantum singularity engine core. ({{TNG|Timescape}})

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===ProcedureRoom===

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{{bginfo|Accordingto Andrew Probert, the engine room is "in the dorsal 'hump' just aft of the twin disrupter mount and you can see an indication of the energy conduit shielding running down to the warp engine in my [''[[Star Trek: Ships of the Line (2010)|Ships of the Line 2010]]''] [[calendars|calendar]] painting." ''[http://www.trekbbs.com/showpost.php?p{{=}}3312206&postcount{{=}}44]}}

The [[science lab|procedure room]] aboard a Warbird is a starkly lit chamber, with a chair at one end of the room, and with various movable pieces of equipment positioned around it. ([[TNG]]: "[[The Mind's Eye]]")

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===ShuttleBay===

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=== Procedure room ===

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The [[shuttlebay]]aboard a Warbird is located on the ships "E" Deck, Section 25. Their size is large enough to contain ''at least'' one Starfleet [[Danube class|''Danube''-class]] [[runabout]]. ([[DS9]]: "[[The Die isCast]]")

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[[File:Dderidex-procedureroom.jpg|thumb|Procedureroom]]

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:''Althoughnotspecificallycalled"E"Deck,it was describedasbeing"twodecksdown"from"C"Deck.Due to the uniqueconfigurationoftheWarbirditisunknownifthisfollowstheirstandarddesignation procedures.''

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The[[sciencelab|procedureroom]]aboardawarbird was astarkly-litchamber,withachairatoneendof the room,andwithvariousmovablepiecesofequipmentpositionedaroundit.({{TNG|TheMind'sEye}})

A[[shuttlebay]] was located two decks down from the ship's "C" Deck, in Section 25. This area was large enough to contain at least one Starfleet {{class|Danube}} [[runabout]]. ({{DS9|The Die is Cast}})

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The [[cargo bay]]s serve as storage areas for the ships cargo, possessing shelving space along the walls opposite of the main cargo bay doors. ([[TNG]]: "[[Face of the Enemy]]")

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:''According to Probert, the original design of the Warbird was to have a two large cargo bays centered on each side of the foremost position of the lower "shell".

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[[Image:Dderidex-quarters.jpg|thumb|[[Crewquarters]]]]

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{{bginfo|According to Andrew Probert: "''Look on the plastic model and see the indented area on the top of the aft end... that is the landing bay door.''" ''[http://www.trekbbs.com/showpost.php?p{{=}}3312206&postcount{{=}}44]}}

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===Crew Quarters===

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The [[crew quarters]] aboard a Warbird are located on the ships "C" Deck. They are sparsely furnished with a table and chairs in the center of the floor, and a set of bunk beds incorporated into the walls. Crew quarters can also have [[forcefield]]s integrated in and around their bulkheads. ([[DS9]]: "[[The Die is Cast]]")

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:''The crew quarters that appeared in "The Die is Cast" were a redress of the crew quarters aboard the [[USS Defiant (NX-74205)|USS ''Defiant'']].''

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Variationsareknownto include a bed fully detached from the wall, and a sink with mirror along the far left wall from the entryway. ([[TNG]]: "[[Face of the Enemy]]")

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===Cargobay===

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[[File:Khazara cargo bay.jpg|thumb|Cargo bay of the ''Khazara'']]

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The [[cargo bay]]s served as storage areas for the ship's cargo, and possessed shelving space along the walls opposite of the main cargo bay doors. ({{TNG|Face of the Enemy}})

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==ShipsCommissioned==

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{{bginfo|Accordingto Andrew Probert, the original design of the warbird was to have two large cargo bays centered on each side of the foremost position of the lower "shell". ''[http://flare.solareclipse.net/ultimatebb.php/topic/6/554/4.html#000044]}}

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* [[IRW Belak|IRW ''Belak'']]

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{{clear}}

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* [[IRW D'deridex|IRW ''D'deridex'']] ([[prototype]])

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* [[IRW D'ridthau|IRW ''D'ridthau'']]

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* [[IRW Decius|IRW ''Decius'']]

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* [[IRW Devoras|IRW ''Devoras'']]

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* [[IRW Dividices|IRW ''Dividices'']]

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* [[IRW Genorex|IRW ''Genorex'']]

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* [[IRW Haakona|IRW ''Haakona'']]

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* [[IRW Khazara|IRW ''Khazara'']]

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* [[PWB Koderex|PWB ''Koderex'']]

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* [[IRW Makar|IRW ''Makar'']]

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* [[IRW T'Met|IRW ''T'Met'']]

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* [[IRW Terix|IRW ''Terix'']]

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* [[PWB Tomal|PWB ''Tomal'']]

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==Appendices==

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=== Crew quarters ===

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===Appearances===

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[[File:Dderidex-quarters.jpg|thumb|Crew quarters]]

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* [[TNG]]:

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The [[crew quarters]] aboard a warbird were located on the ship's "C" Deck. They were sparsely furnished, with a table and chairs in the center of the floor, and a set of bunk beds incorporated into the walls. Crew quarters could also have [[force field]]s integrated in and around their bulkheads. ({{DS9|The Die is Cast}})

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** "[[The Neutral Zone]]"

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** "[[Where Silence Has Lease]]"

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** "[[Contagion]]"

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** "[[The Schizoid Man]]"

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** "[[Peak Performance]]"

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** "[[The Enemy]]"

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** "[[The Defector]]"

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** "[[Tin Man]]"

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** "[[Future Imperfect]]"

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** "[[Data's Day]]"

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** "[[The Mind's Eye]]"

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** "[[Redemption, Part II]]"

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** "[[Unification, Part II]]"

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** "[[Face of the Enemy]]"

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** "[[Birthright, Part II]]"

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** "[[Timescape]]"

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** "[[The Pegasus]]"

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* [[DS9]]:

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** "[[Visionary]]"

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** "[[Improbable Cause]]"

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** "[[The Die is Cast]]"

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* [[VOY]]:

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** "[[Learning Curve]]"

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* [[DS9]]:

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** "[[By Inferno's Light]]"

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* [[VOY]]:

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** "[[Message in a Bottle]]"

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* [[DS9]]:

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** "[[Tears of the Prophets (episode)|Tears of the Prophets]]"

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** "[[Image in the Sand]]"

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** "[[Shadows and Symbols]]"

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** "[[Inter Arma Enim Silent Leges]]"

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** "[[The Changing Face of Evil]]"

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** "[[What You Leave Behind]]"

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===References===

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{{bginfo|The crew quarters that appear in "The Die is Cast" were a redress of a set normally used for all crew quarters aboard the {{USS|Defiant|2370}}.}}

Variations are known to have included a bed fully detached from the wall, and a sink with mirror along the far left wall from the entryway. ({{TNG|Face of the Enemy}})

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The ''D'deridex''-class warbird was designed by [[Andrew Probert]] and was debuted in [[TNG]]: "[[The Neutral Zone]]". It was the last new ship Probert would design for the show. The class designations of "''D'deridex''-class" was first mentioned in [[TNG]]: "[[Tin Man]]".

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{{clear}}

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Theepisodes"Faceof the Enemy" and "The Die is Cast" both heavily feature the interior of the warbird; "Contagion", "The Mind's Eye", "Redemption, Part II", "Timescape" and "Improbable Cause" also feature smaller sections of the warbird's interior.

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==Shipscommissioned==

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;Named:

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* {{IRW|Belak}}

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* {{IRW|Decius}} ([[holographic]])

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* {{IRW|Devoras}}

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* {{IRW|D'ridthau}}

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* {{IRW|Haakona}}

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* {{IRW|Khazara}}

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* {{IRW|Makar}}

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* {{IRW|T'Met}}

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* {{IRW|Terix}}

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The Warbird that appeared in [[TNG]]: "[[Contagion]]" was referred to as a "[[battle cruiser]]", which seems to be an inaccurate classification for a vessel of this size. However, according to the script for that episode, the Romulan vessel was also referred to as a [[Romulan Bird-of-Prey]]. This indicates that the Warbird model ''may not'' have been intended to be used in this case, and the battle cruiser reference was never changed to reflect the model used.

A [[CGI]] model of the [[Mazarite warship]] from [[ENT]]: "[[Fallen Hero]]" appears to be partially composed of Warbird components, notably the top half of the upper "shell".

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;Uncertain:

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* {{IRW|Dividices}}

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* {{IRW|Genorex}}

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* {{PWB|Koderex}}

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* {{PWB|Tomal}}

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* {{PWB|T'Tpalok}}

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* {{PWB|Aj'rmr}}

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* {{PWB|Preceptor}}

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[[Category:Starshipclasses]][[de:D'deridex-Klasse]]{{featured}}

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==Appendices ==

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=== Appearances ===

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<div class="appear">

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* {{TNG}}

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** {{e|The Neutral Zone}}

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** {{e|Where Silence Has Lease}} (illusory)

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** {{e|The Schizoid Man}}

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** {{e|Contagion}}

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** {{e|Peak Performance}} (illusory)

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** {{e|The Enemy}}

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** {{e|The Defector}}

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** {{e|Tin Man}}

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** {{e|Future Imperfect}} (illusory)

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** {{e|Data's Day}}

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** {{e|The Mind's Eye}}

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** {{e|Redemption II}}

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** {{e|Unification II}}

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** {{e|Face of the Enemy}}

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** {{e|Birthright, Part II}}

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** {{e|Timescape}}

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** {{e|The Pegasus}}

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* {{DS9}}

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** {{e|Visionary}}

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** {{e|Improbable Cause}}

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** {{e|The Die is Cast}}

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** {{e|By Inferno's Light}}

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** {{e|Tears of the Prophets}}

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** {{e|Image in the Sand}}

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** {{e|Shadows and Symbols}}

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** {{e|Inter Arma Enim Silent Leges}}

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** {{e|The Changing Face of Evil}}

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** {{e|What You Leave Behind}}

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* {{VOY}}

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** {{e|Learning Curve}} (holographic)

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** {{e|Message in a Bottle}}

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** {{e|Drone}} (database image)

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* {{ENT|Future Tense}} (database image)

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</div>

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+

=== Background information ===

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==== Designation ====

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[[File:USS Enterprise-D and Romulan warbird contend for a Romulan scout ship.jpg|thumb|B-type warbird facing off with the USS ''Enterprise''-D in "The Defector"]]

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In the script for {{e|Tin Man}}, the Romulan warbirds are identified as ''D'daridex'' class cruisers". {{st-minutiae|academy/literature329/168.txt}} This spelling is changed to "''D'deridex''-class" after this episode aired. The designation as "B-type" is mentioned in {{e|The Defector}}, which could be seen as an aptly conceived designation since it coincided with the introduction of the slightly differing second studio model (see below). The ship is also referred to as a "warbird class starship" by Picard in "The Defector".

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+

The warbird that appears in {{e|Contagion}} is referred to as a "battle cruiser", which seems to be an inaccurate classification for a vessel of this size. However, according to the script for that episode, the Romulan vessel was also referred to as a [[Romulan Bird-of-Prey (23rd century)|Bird-of-Prey]]. {{st-minutiae|academy/literature329/137.txt}} This indicates that the warbird model ''may not'' have been intended to be used in this case, and that the battle cruiser reference was never changed to reflect the model used. It is also possible that the [[Romulan battle cruiser]] mentioned in {{e|Angel One}} may too have been the yet-unseen ''D'deridex''.

+

+

==== Studio models ====

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:''See: [[D'deridex class model|''D{{'}}deridex''-class model]]''.

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+

==== ''Technical Manual'' ====

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The following information of specifications and defenses comes exclusively from the ''[[Star Trek: Deep Space Nine Technical Manual]]'':

At least four warbirds were used in the Battle of the Omarion Nebula, joined with at least twelve Cardassian Keldon-class cruisers in a combined fleet of twenty ships. The entire fleet was ambushed and destroyed by a fleet of 150 Dominion ships. (DS9: "The Die is Cast") At least seven warbirds were present in the Federation Alliance fleet at the Battle of Cardassia. One is known to have been destroyed and at least five survived. (DS9: "What You Leave Behind")

The outboard plan of the warbird's design incorporated a unique, horizontally split "shell" hull design, with a prominent forward section. The bulk of the ship's overall size was incorporated in the open-shell, which resembled two separate "wings" that met at either side at the warp nacelles, at the "tail" and off the "neck", which was connected to the "head" or primary forward hull section. The "head" featured the bridge, main engineering, and a majority of the primary weapon systems of the vessel. (TNG: "The Neutral Zone", etc.)

Andrew Probert, who designed the D'deridex-class warbird, intended for it to have a length of 4,440 feet (1,353 meters). [1] He writes, "The wings were to have had a LOT more substance to them (as seen in my drawing) but was reduced [on] the model. They are separated to allow the engines to 'see' each other and generate a warp field. As previously noted on the board, I did not design the subsequent ships that ignore my attempt at requirements-for-warp-drive continuity." [2]

Although not mentioned on screen, the original Andrew Probert design of the warbird was to have a single torpedo launcher positioned at the upper "nape" of the ship, at the top foremost position of the upper "shell". In addition, the warbird was to have a total of ten disruptor emitters, positioned in various locations on the model. These positions included: one pair on the "head" (one on either "cheek"), one pair on the vertical structure at the aft end of the ship (one on either side), two pairs on the aft edges of the port and starboard dorsal and ventral wings (one emitter at each location, for a total of four), and one pair at the dorsal apex of the ship. However, two other emitters are seen on at least one warbird, namely in the "nose" (pictured) and top part of the upper "back" (shown in TNG: "Contagion"). [3]

Like earlier Romulan ships, D'deridex-class warbirds were equipped with cloaking devices, which protected them from detection in most evasive situations. Like all cloaking devices, the D'deridex-class could utilize them when in defensive or combat situations. However, cloaked warbirds radiated a slight subspace variance at warp speeds; therefore, ships traveling at speeds above warp 6 ran a much greater risk of being detected through their cloak. (DS9: "The Search, Part I", "The Die is Cast") There were other unconventional means to penetrate the warbird's cloak. While traveling under cloak, all electromagnetic emissions, including communications, aboard a warbird were carefully monitored. (TNG: "Face of the Enemy")

The fact that a typical D'deridex-class warbird used a forced quantum singularity as its power source gave the ship some vulnerabilities. If that system was not functioning perfectly or was damaged even slightly, it might have shown through the cloak as a magnetic disturbance of some kind. The destruction of the engine core of a D'deridex-class warbird usually led to the complete destruction of the entire ship.

In order for a warbird to remain undetected while under cloak, the radiative emissions from the warp engines had to be precisely balanced. A slight misalignment in any of the warbird's nullifier cores would create a small magnetic disturbance in space whenever the ship was in motion. This could make the ship detectable while cloaked. The effect of this disturbance, when it occurred, appeared intermittently as a polarized magnetic distortion. (TNG: "Face of the Enemy")

The use of the confined singularity limited the warbird's overall maximum speed. For a warbird to match the maximum speed of a Galaxy-class starship, it needed to exceed its engine output by thirty percent. Doing this would typically cause the warbird's warp drive to sustain irreparable damage. (TNG: "Tin Man")

The confined singularity could occasionally cause time shifts into the future. This occurred to Starfleet Chief Engineer Miles O'Brien for a brief period. As a result of this effect, he was able to prevent an attack on Deep Space 9 by a Romulan warbird. Also, if the singularity signature was carefully scanned, it could be monitored through the cloak. (DS9: "Visionary")

Regarding the impulse engine, Andrew Probert writes, "[It was] omitted by a tight schedule [...] but it would have been recessed into a vertical slot starting just below that landing bay and ending symmetrically below. The reason there are few (if any) side windows at the back area of the ship is because that's where that engine & power plant would have been." [4]

The warbird was equipped with at least one tractor beam, located in the forward section of the warbird, specifically in the lower "neck". (TNG: "The Mind's Eye")

Although several features of the warbird were never addressed on screen, Andrew Probert has noted the locations of several unmentioned components, including the locations of the aforementioned weapon systems.

The navigational deflector is supposed to be a "V"-shaped faceplate located on the "face" of the ship. However, the center of this faceplate was instead featured as the primary disruptor array/torpedo launcher by the visual effects editors. [5]

Since Probert has identified at least one of their placements on the physical model, it is now possible to count at least twenty-six escape pod hatches on the warbird, thirteen on either side of the ship's dorsal spine. [6]

The design of the main bridge of a warbird shared numerous similarities to both its Klingon and Federation starship counterparts.

Located in the front of the bridge, against the forward bulkhead, was the ship's main viewscreen. Directly behind this, and to the left, was the location of the pilot's console, which contained helm (and possibly navigator) functions. In some ships, the pilot stood at his console; in others, the pilot was allowed a chair.

At least four different types of D'deridex-class bridges have appeared in Star Trek, each significantly different than the next. Although rather consistent in terms of layout, these variations – including positions and design of auxiliary consoles/stations, style of command chair and design of viewscreen – appear to vary as much between warbirds as they vary between different Klingon Birds-of-Prey. The bridge that appears in "The Die is Cast" is, by far, the most elaborate, followed next by the bridge in "Face of the Enemy".

According to the script for "Face of the Enemy", the original bridge layout placed the command chair to the far back of the bridge so that 'no officer went unsupervised'. This, however, was not how the final layout for the bridge was designed, as there were consoles positioned just outside the commander's peripheral vision, or even directly behind the commander's chair. The bridge that later appeared in "The Die is Cast" placed several auxiliary consoles well behind the commander's field of vision.

Adjacent to the bridge was the commander's ready room or command center. Although appearing to vary by ship, one style included (but was not limited to) a large desk and couch, with removable table and a window that provided a view of outside the ship, such as showing a perspective of space when the vessel was in its normal environment. (DS9: "Improbable Cause", "The Die is Cast")

In some cases, ready rooms functioned as command centers, and included monitors and display consoles. This allowed the commander to monitor the control of ship or fleet activities without actually being on the bridge. (TNG: "Redemption II")

The engine room section was located at the ventral base of the forward "head" of the warbird. Its layout was similar to that of a Galaxy-class starship, with primary situation station in the center of the room and associated consoles along the walls surrounding the room.

One outstanding difference between the main engineering of a warbird and other Romulan starships, likewise distinguishing it from those of the Federation and Klingon Empire, was the absence of a large matter-antimatter reactor core. In place of this bulky component, the Romulans had a wall compartment, which contained the quantum singularity engine core. (TNG: "Timescape")

According to Andrew Probert, the engine room is "in the dorsal 'hump' just aft of the twin disrupter mount and you can see an indication of the energy conduit shielding running down to the warp engine in my [Ships of the Line 2010] calendar painting." [7]

The crew quarters aboard a warbird were located on the ship's "C" Deck. They were sparsely furnished, with a table and chairs in the center of the floor, and a set of bunk beds incorporated into the walls. Crew quarters could also have force fields integrated in and around their bulkheads. (DS9: "The Die is Cast")

The crew quarters that appear in "The Die is Cast" were a redress of a set normally used for all crew quarters aboard the USS Defiant.

Variations are known to have included a bed fully detached from the wall, and a sink with mirror along the far left wall from the entryway. (TNG: "Face of the Enemy")

In the script for "Tin Man", the Romulan warbirds are identified as D'daridex class cruisers". [10] This spelling is changed to "D'deridex-class" after this episode aired. The designation as "B-type" is mentioned in "The Defector", which could be seen as an aptly conceived designation since it coincided with the introduction of the slightly differing second studio model (see below). The ship is also referred to as a "warbird class starship" by Picard in "The Defector".

The warbird that appears in "Contagion" is referred to as a "battle cruiser", which seems to be an inaccurate classification for a vessel of this size. However, according to the script for that episode, the Romulan vessel was also referred to as a Bird-of-Prey. [11] This indicates that the warbird model may not have been intended to be used in this case, and that the battle cruiser reference was never changed to reflect the model used. It is also possible that the Romulan battle cruiser mentioned in "Angel One" may too have been the yet-unseen D'deridex.